Bridgestone Corporation

Other

The Firestone Tire & Rubber Company

Michael W Hayes

William L Hergenrother

Steven Luo

Terrence Eugene Hogan

James Herman Pawlow

Ashley S Hilton

Walter Tomaszewski

Dennis R Brumbaugh

Xiaorong Wang

Victor J Foltz

Jason T Poulton

Zhong-Ren Chen

Yuan-Yong Yan

Zengquan Qin

Yoichi Ozawa

Georg G Bohm

Kevin Michael McCauley

Hiroshi Mouri

Xiao-Dong Pan

Mark W Smale

Chen-Chy Lin

Steven E Schonfeld

Pat Sadhukhan

Edward D Kelley

Peyman Pakdel

John E Inman

Tatsuro Hamada

David E Zak

Jeffery M Hawkins

David M Dietrich

Kevin Mccauley

Junior John G Macke

Amino alkoxy-modified silsesquioxanes (amino AMS), and/or amino co-AMS compounds that also comprise a mercaptosilane or a blocked mercaptosilane, are excellent adhesives for coating plated or unplated metal wire for adherence of the wire to a rubber stock. The amino AMS and/or the amino/mercaptan co-AMS adhesives can be used with all types of rubber and there is no requirement for the use of special adhesive additives to the rubber vulcanizates, such as, but not limited to, cobalt, resins and high sulfur levels. In particular, the use of amino AMS and/or amino/mercaptan co-AMS compounds as adhesives for bonding wire to rubber also improves the adherence performance of the reinforcements to obtain sufficient bonding that is resistant to degradation over the course of time, especially resistance to thermal aging and/or thermo-oxidizing aging, in particular corrosion in the presence of water.

Amino alkoxy-modified silsesquioxane adhesives for improved metal adhesion and metal adhesion retention to cured rubber

A vulcanizable composition of matter comprising a rubber component, a filler, a curative for the rubber, where the rubber component includes a multi-modal polymer including at least two distinct peak molecular weights within a range defined by a lower limit of 80 kg/mole and an upper limit of 500 kg/mole.

Rubber compositions including a polymeric component having a multi-modal molecular weight distribution

A rubber formulation with good wet traction properties includes one or more elastomers and at least two types of particulate filler materials including at least one of which has a relatively high free surface energy in water (i.e., a supplemental filler). The formulation containing the supplemental filler(s) can provide a vulcanizate that has a British pendulum (skid) number that is at least &#x2dc;5% greater than that of a vulcanizate made from an essentially identical formulation that does not contain the supplemental filler(s). Also provided is a method for providing such a formulation which involves identifying one or more supplemental fillers having relatively high free surface energies in water, replacing at least 15% (by wt.) of one or more of the conventional particulate fillers in the formulation with an approximately equivalent volume of supplemental filler particles, and providing the modified formulation.

Methods for identifying and utilizing rubber compositions with good wet traction performance

An amino alkoxy-modified silsesquioxane (AMS) comprising one or more compounds selected from the group consisting of an amino AMS, an amino/mercaptan co-AMS, an amino/blocked mercaptan co-AMS, mixtures thereof, and a weak acid-neutralized solid or aqueous solution thereof, and a method of making the amino AMS, are presented. The compounds are useful in compounding, processing, cure and storage of silica-reinforced rubbers because they contain low levels of volatile organic compounds (VOC).

Amino alkoxy-modified silsesquioxanes and method of preparation

Amino alkoxy-modified silsesquioxanes (amino AMS), and/or amino co-AMS compounds that also comprise a mercaptosilane or a blocked mercaptosilane, are excellent adhesives for coating plated or unplated metal wire for adherence of the wire to a rubber stock. The amino AMS and/or the amino/mercaptan co-AMS adhesives can be used with all types of rubber and there is no requirement for the use of special adhesive additives to the rubber vulcanizates, such as, but not limited to, cobalt, resins and high sulfur levels. In particular, the use of amino AMS and/or amino/mercaptan co-AMS compounds as adhesives for bonding wire to rubber also improves the adherence performance of the reinforcements to obtain sufficient bonding that is resistant to degradation over the course of time, especially resistance to thermal aging and/or thermo-oxidizing aging, in particular corrosion in the presence of water. Vulcanized rubber compositions that contain an amino AMS and/or amino/mercaptan co-AMS compound also have improved adhesion to embedded uncoated steel after humidity aging compared with vulcanized rubber compositions not containing the amino alkoxy-modified silsesquioxane.

A functionalized polymer includes a polymer chain and a terminal functionality that includes at least one disilylamino group. The polymer can be the reaction product of a terminally active polymer chain and a compound that includes at least one disilylamino group and a group capable of reacting with terminally active polymers. Methods for making and using such polymers also are provided, as are compositions containing the polymer and one or more types of filler particles as well as vulcanizates provided from such compositions.

Functionalized polymer and methods for making and using

A polymer includes at a terminus a cyclic amine radical bonded to the polymer through a ring nitrogen atom. The polymer can be provided by using a lithiated version of the cyclic amine to initiate polymerization of one or more ethylenically unsaturated monomers. The polymer can be used in the production in a variety of vulcanizates.

Functionalized polymers and initiators for making same

A nickel-carbene polymerization catalyst system for preparing high cis polydienes is provided. The catalyst system comprises (a) a nickel N-heterocyclic carbene complex, (b) an organoaluminum compound, (c) a fluorine-containing compound, and (d) optionally, an alcohol. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of a polymerization catalyst comprising (a) a nickel N-heterocyclic carbene complex, (b) an organoaluminum compound, (c) a fluorine-containing compound, and (d) optionally, an alcohol.

Nickel-based catalysts for preparing high cis 1,4-polydienes

A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a lanthanide compound, (b) an organoaluminum hydride, and (c) a tin halide compound.

Lanthanide-based catalyst composition for producing cis-1,4-polydienes

A catalyst composition that is the combination of or the reaction product of ingredients comprising an iron-containing compound, an organomagnesium compound, and an &agr;-acylphosphonate diester.

Iron-based catalyst for producing high-vinyl polybutadiene

A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an molybdenum-containing compound, (b) a silyl phosphonate, and (c) an organoaluminum compound.

Molydenum-based catalyst composition for producing syndiotactic 1,2-polybutadiene

A method for increasing the damping properties of tire rubber comprising the steps of adding an unsaturated damping additive to a vulcanizable composition of matter, and processing the vulcanizable composition of matter containing the damping additive into tire rubber.

Elastomeric compositions for damping

A vulcanizate that has improved damping properties where the vulcanizate is prepared by the steps comprising blending an unsaturated damping additive within a vulcanizable composition of matter, wherein the vulcanizable composition of matter includes a vulcanizable elastomer, and effecting vulcanization of the elastomer.

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Canton, OH, United States of America

Michael W Hayes